The molecular weight is always a whole-number multiple of the empirical formula weight.

Question

Quizplus · Accepted Answer

The molecular weight is the sum of the atomic weights of all the atoms in a molecule. The empirical formula weight is the sum of the atomic weights of all the atoms in the empirical formula. The molecular formula may be a whole-number multiple of the empirical formula, and therefore the molecular weight will also be a multiple of the empirical formula weight.

The Molecular Weight Is Always a Whole-Number Multiple of the Empirical